Wire-bending machine



I. DARLING.

WIRE BENDING MACHINE.

APPLICATION FILED sums. 1920.

1,388,409. Patented g 23, 1921.

3 SHEETS-SHEET I.

J. DARLING.

WIRE BENDING MACHINE.

APPLICATION FILED SEPT. 9. 1920.

1,388,409. Patented g- 23, 192 1.

3 SHEETS-SHEET 2- J. DARLING.

WIRE BENDING MACHINE.

APPLIQATIDN HLED SEPT. 9. 1920.

1,3 ,409, Patented Aug. 23, 1921.

3 SHEETS-SHEET 3.

UNITED .,STATES PJATENT. OFFICE.

JAY DARLING, or wrnmmsron'r, mmnzte.

WIBE-IBENDING MACHINE.

To all w hem it may concern Be it known that I, JAY DARLING, a citizen of the United States, residing at Williamsport, in the county of Warren and State of Indiana, have invented anew and useful VVire-Bending Machine, of which the fol lowing is a specification.

The object of my invention is to provide an implement adapted to form a wire fastener of the novel form illustrated for use in the construction of wire fences, the fasteners being partially embedded in concrete posts. I attain the objects of my invention by the mechanism illustrated in the accompanying drawings, in which Figure 1 is a plan view of my invention, with the wire bending arms shown in their initial position before the wire is cut or bent;

Fig. 2 is an elevational view with the lever 13 in position for the third operation, as indicated at C;

Fig. 3 is a similar elevation with the lever 21 in position E following the final operation of bending the wire fastener;

Fig. 4; is a top plan or edge view;

Fig. 5 is a side elevation looking from the side of lever 10 with parts shown as in Fig. 2;

Fig. 6 is a side elevation from the opposite side of Fig. 2;

Fig. 7 is a transverse section on the line 7-7 of Fig. 2, showing the parts in the position shown in full lines in that figure:

Fig. 8 is a section on the line 7-7 of Fig. 2, showing the parts in position shown in dotted lines in Fig. 2;

Fig. 9 is a perspective view of the head oflever 13; and

Fig. 10 is a perspective view of the completed wire fastener.

Like numerals designate like parts in each of the several views.

Referring to the accompanying drawings I provide a base-plate 1 suitably mounted, as by screws 2, on a suitable rigid support. Member 1 is provided with an upstanding lug 3, on either side of which are pivotally mounted levers 10 and 13, the respective heads 12 and 15 of which are pivoted to late 1 by the respective pivots 11 and '14. bpaced from lug 3, approximately the length of the wire fastener W, I provide a bending anvil 4: having a raised extension 5 suitably afiixed to member 4 as by screws 6. Positioned between lug 3 and bending anvil 4, in spaced relation to said members, I pro- Specification of Letters Patent. Patented A110; 23, 1921, Application filed September 9, 1920. Serial No. 409,223; i

vide a vertically extending bending anvil 7 having a longitudinal upstanding flange 8. Bending anvil 4 is provided with a lateral extension 9 over which the head 22 of the third bending lever 21' operates. Lever 21 is pivotally mounted on bending anvil 4 by a suitable pivot 25. I provide an extension plate 16 suitably aflixed, asby screws 17, to head 15.0f the second bending lever 13, as shown in Fig. 2.

Extension plate 16 is provided with a transverse undercut groove 18, as shown in Fig. 9. i I I Extension 5 of bending anvil i is provided with a horizontally projecting bending anvil 19, there being a recess 20 between said anvil 19 and the base-plate 1.

Near the edge of base plate 1 I provide a wire-cutting flange 23, positioned to operate withthe undercut groove 24 in the head 12 of lever 10.

To operate the device the levers 10 and 13 are first moved to the position shown in Fig. 1 and a straight strip of wire W is placed on the plate 1 between lug 3 and the adjacent end of the vertical bending anvil 7. The first bending lever 10 is then moved to the position A, making the initial bend in the wire. The next step in the operation of producing the fastener is to move the second bending lever 13 from the position shown in full line in Fig. 1 to position B in that fig- V ure. Lever 13 is then moved back to its former position, designated C in Fig. 2, and the projecting end of wire W is bent reversely manually and the lever 13 is thereupon swung to position D, causing'the wire to bend around the rounded end of the horizontally projecting anvil 19, as shown in Fig. 8. The third bending lever 21 is thereupon swung from the position shown in Fig. 2 to a position at right angles thereto, designated E in Fig. 3, producing the final bend in the wire fastener.

lVhen the wire IV is first placed on the bending plate it is sex ered to the required length by swinging lever 10 over the wirecutting flange 23 on the edge of the baseplate, the grooved head 12 of lever 10 operating with flange 23 to sever the wire.

What I claim is:

1. In a wire bending device of the class described, the combination of a base-plate, spaced upstanding lugs and bending anvils of'suitable shape and positioning to give the wire the desired form while being bent,

spaced bending levers pivotally mounted on the base-plate and having enlarged heads shaped to bend thewire in the required lug, a longitudinal upstandingflange spaced from said lug, a bending anvil spaced from the other end of the longitudinal upstanding flange, said'bending anvil having a horizontally projecting extension, and a plurality of spaced. bending levers pivotally mounted and suitably shaped and positionedto oper-- ate with the above described anvil and flange to bend a wire fastener to the shape shown.

3. In combination with the mechanism described in claim 2 one of the bending levers mentioned having a groove, and a wire-cut- 1 said bending lever tosever the ting flange mounted on the baseplate near one edge thereof in position to operate with 7 wire to the ClQSIIG/Cl or required length.

'4. In a device of the class described, a

base-plate, means for holding a wire in position while beingbent, a pivotally mounted bending lever for first making a-right-angle bend in the wire, a second bending lever pivotally mounted on the base-plate and shaped and positioned to bend the wire to areversely extending parallel position, said bending lever having a grooved extension element adapted to engage and bend the'wire in a transverse direction, and a third and pivotally mounted bending lever adapted to engage the transversely bent wire'and bend same in a direction at right angles to said transverse bend andlongitudinally'and parallel with the longitudinally extending parts of the wire, for producing a wire fastener of the shape shown.

JAY DARLING. 

